28344762 has 32 divisors (see below), whose sum is σ = 63884160. Its totient is φ = 9313920.

The previous prime is 28344761. The next prime is 28344773. The reversal of 28344762 is 26744382.

It is not an unprimeable number, because it can be changed into a prime (28344761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138 + ... + 7530.

It is an arithmetic number, because the mean of its divisors is an integer number (1996380).

Almost surely, 2^28344762 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28344762, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31942080).

28344762 is an abundant number, since it is smaller than the sum of its proper divisors (35539398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28344762 is a wasteful number, since it uses less digits than its factorization.

28344762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475 (or 7469 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 28344762 is about 5323.9799022911. The cubic root of 28344762 is about 304.9001267551.

The spelling of 28344762 in words is "twenty-eight million, three hundred forty-four thousand, seven hundred sixty-two".